highland
加入词篮inland
plain
vast
basin
lake
pond
pool
stream
brook
swamp
river
deposit
layer
pile
heap
fill
zone
equator
latitude
longitude
polar
horizon
altitude
rock
tough
stiff
quartz
marble
mineral
ore
fossil
coal
tar
volcano
earthquake
map
ratio
chart
spring
well
spring
astronomy
universe
universal
planet
Mercury
earth
star
galaxy
satellite
rocket
moon
eclipse
phase
sun
space
spacecraft
spaceship
astronaut
Cancer
orbit
revolution
chemistry
chemist
acid
molecule
agent
metal
aluminum
bronze
copper
tin
nickel
zinc
crystal
transistor
particle
alloy
concentration
aluminum
nitrogen
gas
air
sky
solution
carbon
carbohydrate
oxygen
oxide
silicon
calcium
sulfur
hydrogen
mix
mixture
blend
physics
physicist
science
